IME (input method editor) support for Aura, part 3 of 3: Use ui::InputMethod in ash.

ui/aura_shell/root_window_event_filter.cc

Index: ui/aura_shell/root_window_event_filter.cc
diff --git a/ui/aura_shell/root_window_event_filter.cc b/ui/aura_shell/root_window_event_filter.cc
index 4279f30cda57c250f128686e8ac6c1dd70906de8..278462a9815890658bd383d0a0a1f4aa80653ca9 100644
--- a/ui/aura_shell/root_window_event_filter.cc
+++ b/ui/aura_shell/root_window_event_filter.cc
@@ -61,6 +61,10 @@ void RootWindowEventFilter::RemoveFilter(aura::EventFilter* filter) {
   filters_.RemoveObserver(filter);
 }
 
+size_t RootWindowEventFilter::GetFilterCount() const {
+  return filters_.size();
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // RootWindowEventFilter, EventFilter implementation: